Tv shuts off after being on only about 30 to 35 seconds,green power/standby led blinks 30 seconds,then tv comes back on,power/standby led stays green. Then this repeats until you give up trying to watch anything. Any suggestions?

Green power/standby led blinks about 30 times during the 30 seconds it is off. (once per second.) When it comes back on it stays green.(no blinking)Green power/standby led blinks about 30 times during the 30 seconds it is off. (once per second.) When it comes back on it stays green.
(no blinking)

8 Answers

I had the same problem with my SONY TV shutting down and the green power light blinking 35-38 times before the set came back on. My RED Lamp Light never came on, but the problem is the LAMP. I spoke to SONY Support on the web and on the phone. All they wanted to do was set up a service call for me. I ordered a replacement bulb from SONY and it fixed the problem. This is a very easy replacement and they send the allen wrench you need to remove the old bulb and install the new bulb. Simple replacement Instructions are included in the box. Thanks to www.FIXYA.com I saved a very expensive service call.

I too had the on/off on the KDF-60WF655
I removed the bulb, cleaned it and still the same on/off issue. Read more posts and saw the one re the dust on the air flow screen - and YES I had the same. Cleaned it and YES !!! .....up and running just fine .
Will likely order a bulb anyway as I am into year 5 with the original

Anonymous

Re: Tv shuts off after being on only about 30 to 35...

I had the same symptoms. I replaced the lamp and fixed the problem. But then I looked at the old lamp. There was a dust buildup on the screens which cover the cooling holes. I blew off the dust and put the old lamp back in- it worked fine!

Anonymous

Re: Tv shuts off after being on only about 30 to 35...

We had the same problem and decided that it might be on some sort of timer. We removed the lamp, waited a minute, and put the same lamp back in and the television is working fine now. Maybe the lamp will have to be changed in the near future, but for now all is well.

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Related Questions:

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://electronicshelponline.blogspot.com/

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given. Surf the site with patience.

These blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit stage inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power led, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating, to many popular brand TVs and other devices. Viewing it in "Mosaic" will make surf easy.http://electronicshelponline.blogspot.com/
Blinking codes details to many popular brand TVs are given.

Five blinks - AKB
circuit (automatic kine bias), the timer/standby indicator blinks
for about 30 seconds then goes to the self-diagnosis function.
Something is wrong with the video. Check video out, Q705, 732, 761
and other components on the C board, also check Q218, 219, 220 on
the A board. In addition, unit could be in IK blanking, try turning
up screen A2 slightly.

Those blinks [flashes] are fault indication (Error Codes). From the number of blinks occur at one time switch ON, you can get an idea about the faulty circuit section inside it. This will make repair easy. These are called blinking codes. Make sure about the exact number of blinking of the standby/power LED, by switching On & OFF the set, for at least two times. Count it carefully. If you wish to get some details, check the site linked here. It has details about blinking codes, and fault locating procedure, to many popular brand TVs and other devices. http://homenol.blogspot.com/http://electronicshelponline.blogspot.com/
If blinks continue without any pause, the main board is faulty.

TV shuts off if it gets cold,this is the symptom of "cold solder" in power supply section and also in DM board section.needs to reworks or resolder the solder joint.
The constant blinking green light means that the TV is not booting up. This is a common problem on this set.You need to remove the shield from the DM board (standing upright on the left where the DTV RF connector is)and inside you will see the four leaky capacitors (1000 MFD 16 VOLT)replace them,plug the TV in and wait 70 seconds for the blinking light to stop,then turn on the TV.The hard part will be removing the board from the TV(lots of screws and connectors,takes time)

You must do some checks first:LED does not stop blinking after plug in. Verify the standby supplies, 12-volts at connector KA pin 17, 6-volts at KA pin 18 and the 28-volts at KA pin 19, if the supplies are present suspect the DM PCB part # 934C067001 LED does not stop blinking after plug in. Check C9B01, C9B02, C9B10, and C9B11 (1000 UFD 16) on the DM PCB, if they are bad replace them with part # 181P734030 (680 UFD 16 V). LED stops blinking after 70 seconds of plug in but will not power on. This model is equipped with a keyboard lock feature; this can be mistaken as a no power condition. To unlock the keyboard press and hold the "menu" button on the front panel for 10 seconds . LED stops blinking after 70 seconds of plug in but will not power on. Check for 3.2 volts DC at connector RF pin 4 and 5 on the Signal PCB if low suspect problems with the switches/buttons on the Control PCB part # 935D736001. LED stops blinking after 70 seconds of plug in but will not power on. Keyboard is not locked and key inputs at connector RF pin 4 and 5 check good suspect the E2P PCB part # 934C061001.